CN2147144Y - Wiper rod joint device for automobile - Google Patents

Abstract

The utility model relates to a pin wiper arm joint device for the wiper of an automobile. The pin wiper arm joint device is fastened at the lower part of a pin hole connected with the main frame of the wiper and the rocker arm of the automobile and is made of plastic material with flexibility. The pin wiper arm joint device is provided with a square frame body. The left side and the right side of the square frame body extend. The top edge of the square frame body is provided with the convex wall of a seat hole. The middle parts of the square frame body are connected with a transverse connecting piece. The center of the transverse connecting piece is provided with a convex block upwards. The top surface of the convex block is arched. The convex block is provided with a pull plate downwards. The front and the back of the pull plate are convex outside the frame body. Symmetrical hooked blocks are bridged near the fastening joint device of the pin hole of the main frame of the wiper. The seat holes of the joint device are buckled on the hooked blocks. The arched top surface of the convex block is exactly positioned at the lower edge of the pin hole. The pin of the rocker arm of the automobile is positioned in the pin hole.

Description

Wiper rod joint device for automobile

The utility model relates to that the latch Wiper arm that provides disconnects device on a kind of windshield wiper, especially refer to a kind of device that disconnects, extend the convex wall in tool seat hole in its framework and arranged on left and right sides, can fasten with the hooked scarf of pin hole rain brush setting in the rain brush body frame and fix, and be subjected to pulling force and displacement with pulling-on piece by projection in the framework, so that the latch that joins with the automobile rocking arm is combined in the body frame pin hole or withdraws from.Have advantages such as sound construction, difficult drop-off and easy disassembling.

In the rain brush of now using, firmly make up with the automobile rocking arm in order to reach body frame 2, be provided with and disconnect device 9 as shown in Figure 9, it has one and surrounds frame 91 outside the four directions.In the rain side of housing 91, protruding upward have a pair of coupler body 92, and can be fixed into as shown in figure 10 from the pin hole 21 bottoms installing that body frame 2 central authorities laterally offer disconnecting device 9.In Figure 11, disconnect outside the device in the frame 91, one embolium 93 is set, 931 at one end is connected to the housing inboard, and the other end then has a pushing block 932, protrudes from pin hole 21 other square hole 22 upper surfaces of body frame 2 in the group device, and make the projection 933 of embolium 93 central authorities stretch into pin hole 21, and the latch of windshield wiper rocking arm can be inserted in the pin hole 21 of body frame, utilize the backstop of projection 933, prevent the latch landing; Simultaneously, when dismounting, then pushing block 932 is exerted pressure downwards, force embolium 93 to have a down dip, and projection 933 withdraws from pin hole 21, makes latch can break away from decomposition.

In above-mentioned device, have following shortcoming at least:

1. in Figure 12, when pushing pushing block 932 and make latch recess body frame 2, because disconnect device is that plastic cement material is made, and will form bending (shown in imaginary line among the figure), make the relative distance of two coupler bodies 92 dwindle (as L1 length among the figure), hold distance (shown in L2 among the figure), very easy disengaging body frame, unfavorable user less than the original hook of two coupler bodies 92.

2. embolium 93 only is to be connected with housing 91 with an end 931, seems quite fragile; Especially when dismounting, must if the application of force is excessive, then can't reduce or cause the phenomenon that wrecks to pushing block 932 application of forces.

3. only be planar design at the end face of projection 933, too small in the area of contact that stops the latch landing, when the rain brush reciprocating action, produce suitable torque, engage with this, easy to wear and can't bear to use on projection 933.

The main purpose of the utility model system provides that the latch Wiper arm that provides disconnects device on a kind of windshield wiper, and therefore one to disconnect device be that ecto-entad is fastened on the body frame hooked scarf, so when the use pulling-on piece, obscission can not take place.

Another purpose of the utility model ties up in the horizontal contact pin two ends that disconnect device prolongs respectively in the framework both side edges, makes upper protruding block when operation keeps off, and mean forced does not take place and have the phenomenon that wrecks.

The device that disconnects according to the latch Wiper arm that provides on a kind of windshield wiper of the present utility model, it mainly ties up to pin hole below that the rain brush body frame links to each other with the automobile rocking arm and fastens one and disconnect device, the above-mentioned device that disconnects is that the flexible plastic material of tool is made, and has a square framework; It is characterized in that:

Above-mentioned framework both side edges extends upward and forms the convex wall with hole, and at the both sides of framework inner edge with a horizontal contact pin cross-over connection therebetween; Entreat the projection cambered surface that has protruding upward among the horizontal contact pin, the mediad below is protruding with pulling-on piece before; And disconnect asking of device within the walls relatively at the pin hole place of body frame central authorities, laterally cross-over connection have section be " " the type hooked scarf, its lateral border upwards forms inclined side, and slide along this inclined side when combination in the seat hole 121 that disconnects device with facility; among buckling into a hole fully to hooked scarf; make the projection that disconnects on the device, and the backstop latch is center section part between the big both ends of diameter, makes it be difficult for landing.

The latch Wiper arm that provides disconnects in the device on windshield wiper of the present utility model, and the end face that wherein disconnects the device upper protruding block forms the top arcwall face, to increase and latch backstop area.

The latch rain brush that provides disconnects in the device on the later-model windshield wiper of the present invention, and the bottom surface that wherein disconnects the device pulling-on piece has then provided reinforcing steel.

The latch Wiper arm that provides disconnects in the device on windshield wiper of the present utility model, and wherein horizontal contact pin only is connected with the framework side with an end, and with the horizontal contact pin other end push away post be stretched on offer on the body frame push away the post hole, disconnect action with control.

Below, will describe the architectural feature of the utility model in detail according to the embodiment shown in the accompanying drawing.Wherein, being simply described as follows of each figure:

Fig. 1 represents the exploded drawings of the utility model;

Fig. 2 represents the part amplification profile of the utility model;

Fig. 3 represents the cutaway view of the utility model;

The AA cutaway view of Fig. 4 representative graph 3;

On behalf of the utility model, Fig. 5 disconnect the device action scheme drawing;

The BB cross section view of Fig. 6 representative graph 3;

Fig. 7 representative disconnects another embodiment of device;

Fig. 8 representative graph 7 disconnects the assembled sectional view of device;

Fig. 9 representative is commonly used and is disconnected the device exploded drawings;

The combination stereogram that disconnects device is commonly used in Figure 10 representative;

The section-drawing that disconnects device is commonly used in Figure 11 representative;

Figure 12 representative is commonly used and is disconnected the device action scheme drawing.

See also shown in Fig. 1,2,3, the pin hole 21 belows fastening one that the utility model ties up to rain brush body frame 2 disconnects device 1.As shown in the figure, the above-mentioned device 1 that disconnects has a cubic framework 11, and its both side edges 111,112 extends upward and forms the convex wall 12 with hole 121, and at the both sides of framework 11 inner edge with horizontal contact pin 13 cross-over connections therebetween.Entreat the upper protruding block 131 that has protruding upward among the horizontal contact pin 13, its end face is an arcwall face 132, and is protruding with push jack 133 after before entreating downwards among the horizontal contact pin 13, and the bottom surface of push jack 133 has then provided reinforcing steel 134.

Equally, on Fig. 2 shown in, at pin hole 21 places of body frame 2 central authorities within the walls between 22, laterally cross-over connection have section be "

" type hooked scarf 23, its lateral border upwards forms inclined side 24, slide along this inclined side 24 when combination in the seat hole 121 that disconnects device 1 with facility, buckle into a hole 121 fully to hooked scarf 23 among, after its combination as shown in Figure 4.

See also again shown in Fig. 3 and 4, disconnect projection 131 on the device 1, because of forming arcwall face 132 in end face, make be connected in the windshield wiper Rocker arm 5 on the diameter of latch 3 when changeing little center section part 31 and engaging, upper protruding block 131 has the bigger both ends 32 of bigger area and latch 3 diameters and contacts, make latch 3 after combination, can slippage.

In when dismounting, but pull-tab 133 bestow to lower compression power, have pliability because of disconnecting device 1, make upper protruding block 131 together be moved down by drive, disappear and latch 3 both ends 32 are formed the backstop state,, finish decomposition so that latch 3 detaches the pin hole 21 of body frame 2.

In addition, in Fig. 5, show, upper protruding block 131 is withdrawed from that the push jack 133 that disconnects device 1 is bestowed to lower compression power, when the card of latch 3 is only stopped, then the relative distance in two holes 121 will be dwindled (being reduced to L4 from original L3), therefore the hooked scarf 23 of body frame 2 inside will be held more tightly to seat hole 121 hooks, will can easily not come off as commonly using (as the explanation of Figure 12) so disconnect device 1.

The further embodiment of the utility model, as shown in Figures 7 and 8, system will disconnect device 1 ' horizontal contact pin 13 ' only be connected with framework 11 ' side with an end, and with horizontal contact pin 13 ' other end push away post 133 be stretched on offer on the body frame 2 push away post hole 25, and this kind disconnect two holes 121 of device 1 ' also have ', be interlocked with the hooked scarf 23 in the body frame 2, to form assembled state shown in Figure 8, utilize horizontal contact pin 13 ' projection 131 on going up ', to hold latch 3 location, it also has the above-mentioned main effect that disconnects the device difficult drop-off.

In sum, the utility model disconnect device, make rain brush fashionable with the windshield wiper rocking arm set, to be more firm, and when decomposing, also do not have obscission and produce with latch, be greatly improved with the shortcoming of Wiper structure, have novelty, creativeness and practicality, really meet the condition of utility model, so file an application in accordance with the law.

Claims (4)

1, the device that disconnects of the latch Wiper arm that provides on a kind of windshield wiper ties up to pin hole below that the rain brush body frame is connected with the automobile rocking arm and fastens one and disconnect device, and the above-mentioned device that disconnects is that the flexible plastic material of tool is made, and has a square framework; It is characterized in that:

Above-mentioned framework both side edges extends upward and forms the convex wall with hole, and at the both sides of framework inner edge with a horizontal contact pin cross-over connection therebetween; Entreat the projection cambered surface that has protruding upward among the horizontal contact pin, the mediad below is protruding with pulling-on piece before; And disconnect relatively within the walls between the device at the pin hole place of body frame central authorities, laterally cross-over connection have section be "

" the type hooked scarf, its lateral border upwards forms inclined side, and slide along this inclined side when combination in the seat hole 121 that disconnects device with facility; buckle into fully to hooked scarf among the hole of seat; make the projection that disconnects on the device, and the backstop latch is center section part between the big both ends of diameter, makes it be difficult for landing.

2, disconnect device according to the latch Wiper arm that provides on the described windshield wiper of claim 1, it is characterized in that, the end face that wherein disconnects the device upper protruding block forms arcwall face, to increase and latch backstop area.

3, disconnect device according to the latch Wiper arm that provides on the described windshield wiper of claim 1, it is characterized in that, the bottom surface that wherein disconnects the device pulling-on piece has then provided reinforcing steel.

4, disconnect device according to the latch Wiper arm that provides on the described windshield wiper of claim 1, it is characterized in that, wherein horizontal contact pin only is connected with the framework side with an end, and with the horizontal contact pin other end push away post be stretched on offer on the body frame push away the post hole, disconnect action with control.

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